My AT&T phone has the same issue. Never been wet, but the sensor is red! Apparently humidity, condensation, and persrperation are all that is needed to turn the sensor red. Wish I had thought of this racket!

Matel has been selling the game Monopoly for more than 50 years now and they still get paid for it every time someone purchases it. Why is a song any different? Songs are the product of musicians and as long as people are willing to pay for it the musician should get his royalty. It's not rocket science.....